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Table 2 Physical properties of four different types of fiber.

From: Study on Early-Age Elastic Modulus of FRC Using Electrical Resistivity and Resonance Frequency

 

Polypropylene

Nylon

Glass

Steel

Density, ρ (kg/m3)

910

1150

2700

7800

Tensile strength, τ (MPa)

410

300

2000

1030

Flexural strength, σ (GPa)

5.6

2.8

77

203

Fiber length, l (mm)

19

19

13

25.4

Diameter of fiber, d (mm)

1.52

0.038

0.014

1.18